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1490 5 Digit 1/8 DIN
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Panel Indicator
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Features
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·
Universal Input
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Min/Max Value Hold
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2 Alarm Outputs
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Modbus Communications
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Retransmission
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Transmitter Power supply
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Description
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The
1490 is a Universal Input Indicator with single or dual configurable alarms,
optional linear
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retransmission
of Process Variable, Transmitter power supply option as well as optional
Modbus
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communications.
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Technical
Data
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FEATURES
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Output
Configuration
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1
or 2 relay outputs, with optional linear retransmission
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Alarms
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2
process high/low with adjustable hysteresis
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Viewable
Values
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Process
variable, maximum value, minimum value
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Human
Interface
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3
button operation, 5 digit 13mm high display red, green, 2 alarm indicator
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INPUT
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Thermocouple
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J,
K, C, R, S, T, B, L, N & PtRh20%vsPtRh40%
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RTD
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3
Wire PT100, 50Ω per lead maximum (balanced)
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Strain
Gauge
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350
Ohm Strain Gage
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Bridge Connection:
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4
or 6 wire (6 to use internal shunt cal switch)
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Bridge Excitation:
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10V
+/-7%
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Bridge Sensitivity:
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1.4
– 4 mV/V
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Input Signal Span:
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-25%
to +125% of full scale (approximately -10mV to +50mV)
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Calibration:
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Internal
switch between CAL2 & CAL1 terminals. External resistor only.
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Shunt Value:
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From
40% to 100%
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DC
Linear
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0
to 20mA, 4 to 20mA, 0 to 50mV, 10 to 50mV,
0
to 5V, 1 to 5V, 0 to 10V, 2 to 10V.
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Scaleable:
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1999
to 99999, with adjustable decimal point
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Impedance
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>10MΩ
for Thermocouple and mV ranges, 47KΩ for V ranges and 5Ω for mA
ranges
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Accuracy
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+/-0.1%
of input range +/-1LSD (T/C CJC better than 1๐C)
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Sampling
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10
per second, 16 bit resolution approximately (100ms sample time)
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Sensor
Break Detection
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<2
seconds (except zero based DC ranges),
high
alarms activate for T/C, RTD and mV ranges,
low
alarms activate for mA or V ranges
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OUTPUTS & OPTIONS
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Alarm
Relays
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Contact
Single Relay SPDT 2 Amp resistive at 240V AC, >500,000 operations.
Latching
or non-latching. Dual Relay SPST 2 Amp resistive at 240V >200,000
operations. Reinforced safety isolation from inputs and other outputs.
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DC
Linear Retransmit
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Outputs
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0
to 20mA, 4 to 20mA into 500Ω max, 0 to 10V,
2
to 10V, 0 to 5V into 500Ω min.
15
¾ bit (1 part in 52K) and updated at about 65ms intervals. (130ms settling
time)
Stability:
+/-76ppm
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Transmitter
Power
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Supply
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Output
24VDC (nominal) into 910Ω minimum to power external devices
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Serial
Communications
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2
Wire RS485, 1200 to 19200 Baud, Modbus
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Logic
Input
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External
reset of latched relay, stored alarm 1 elapsed time, stored min/max PV values
or initiate tare function. Action occurs on high (3 to 5VDC) to low
<0.8VDC, or Open to Closed transition.
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OPERATING & ENVIRONMENTAL
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Temperature
& RH
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0
to 55๐C (-20 to
80๐C
storage), 20% to 95% RH non-condensing
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Power
Supply
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85
to 264V 50/60Hz 7.5VA (optional 20 to 48V AC 7.5VA/22 to 65V DC 5 watts)
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Front
Panel Protection
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IEC
IP66 (Behind panel protection is IP20)
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Standards
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CE.
Pollution Degree 2, Installation Category II “UL Listed”.
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